Paper-folding machine.



S.LAZAR. v PAPEB. FOLDING MACHINE.

Patented Dec.29,-191

2 SHEETS-SHEET 1.

S. LAZAR.

PAPER FOLDING MACHINE,

APPLICATION FILED 1 213.20, 1913.

Eatented Dec. 29, 1914.

2 SHEETS'SHEET 2.

ski

hdmim PAPER-FOLDING IiIACI-IINE.

i U linden.

Application filed February 20 To 1// I"'/l 011/, it mo (ran/10771..

it known that l. Sotouou iJAX/AR, a citizen of the l nited F tates. residing in the city and county of San Francisco and f itate 5 of California, have invented a new and useful Improvement in Paper-Folding Machines, of which the following is a specification.

My invention relates to an improved niachine for folding and interleaving a pluralitv of paper strips wherein a plurality of overlapping. open dies are used to interleave fold and guide said paper strips in the manner set forth and for the purpose described in Letters Patent Number fil -1.215). issued to Solomon Lazar and tinted February 5th, 1907, and the objects of my invention are first, to provide means for supporting the upper as well as the lower dies throughout the length thereof. second, to provide open dies so that the threading of the paper strips through the machine may be greatly facilitated and simplified. and th rd. to provide a cheaper and more simple construction, and fourth, to reduce friction by reducing the superficial area of the dies.

For full and clear comprehension of my invention, reference should he had to the drawin g forming-a part of this specificatiou wherein like numerals of reference designate similar parts throughout the said specification and drawings and wherein Figure 1 is a plan iew of the paper folding machine. Fig. '2 is a longitudinal section partl broken away and on a larger scale. Figs. 3, i and are diagrauunatic views disi'rlosin rthe relative positions of the upper and' lower dies and the manner in which both upper and lower dies are 'upported at sections taken near the beginuii'igr, center and ends, respectively, of the dies. Fig. 6 is a broken detail view of one ol the upper dies disclosing the manner in which the said die is supported throughout its length.

My improved pa per sis suhstantially of having an extension 2 at one end thereof with the pressure blocks 3. through which the iuhu-leaved paper strips are drawn. mounted thereon. rectangular sleeve -l is secured to the table I and is provided-for the purpose of securing the interleaved ends of the open dies 5 and (3 which radiate from the said sleeve i into flat surfaces at the op posite ends thereof which are secured to the folding machine cona horizontal table l Specification of Letters Patent.

.1913. Eerie.

Zatented Her. 29. M914.

or-ca ed.

flared guid s Ii a respectively. The

.3 and 1' =1": iohhd c ntrall and longitudinally to operate giaduall to fold a etrip of, and longitudinally rcln-n die i passed over the said diesu as herei' or des ribed. The upp r llitr are Lori s l (OHILXMl while the lower dies 'llnlower dies 5 are support: in a \lraight lmrizontal posi' tion by the tab e l. The upper dies (3 are supported throughout their length by the horizontal tapered supports T which rest on the tabled and extend between the lower dies 5 and cngfrw'r the approximate center of the upper di as illud a'red in Figs Fl. and 7: f the diwizz'ings. strips of paper 8 and 5) are fr-d from iauitahly supported rolls through the flared guides 5 and h of the dies 5 and '1 respecti-Jelv. and after pass ing over the said dies and ('1 and through the sleeve l are interleaved and folded in the usual manner. l-lcretot'ore the dies were LOIZIDOHLi'l of light. flexible material which, being supported only at intervals. would sag and bend under their own weight and cause the paper strips to he dclha-ted to either side thus necessitating guides or closed tubes to prevent such dcllertiou.

My improvement consists chielly in open dies which are supported throughout the entire length thereof by means of the table 1 so a s to provide substantially a straight path for the paper strips, to he interleaved and folded. from the flared guides 5' and ii to the interleaving ends. of the dies and ti res'sgectiv'el inasmuch as the supporting dies 5 and (3 are hll])[)()!i((l by the table 1 in practically a straight line; there is no tendency on the part of the said di s to deflect the paper strips to either side. (onseuucntly the said strips are fed into the interleaving ends of the dies in an even manner and are folded and intrrloaved evenly.

The obvious advantages of my construelion a re. accorsibiltv of the dies \vhich facilitates the. threading of the paper strips and eliminates the necessity for an emergency strip for rwthreadinn purposes when one of the paper strips becomes detached or broken. The open dies also admit of a simple and cheap constriu-tion which is very essential in niarhiucs of thisclass. \Vith open dies the superficial area is also greatly reduced. thus eliminating friction between the paper and the dies, consmpiently h-ss power is required to draw the paper through the machine,

which reduces the tendency of the paper to break or tear.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent isa strip of paper centrally and longitudinally when the said strip is passed over the said dies, the dies of the lower series being substantially concavcd and the dies of the upper series being substantially convexed in cross-section relative to the dies of the said lower series, the sides of the dies of the upper series fitting into the concavities of the lower series; and horizontally extending supports between each pair of dies of the lower series adapted to support the dies of the upper series.

2. In a paper folding machine, the combination of a suitable horizontal table; an upper and a lower series of open dies seseries being bent lengthwise so as to operate gradually to fold a strip of paper centrally and longitudinally when the said strip is passed over the said dies, the dies of the lower series being substantially .concaved and the dies of the upper series being substantially convexed in cross-section relative to the dies of the said lower series, the sides of the dies of the upper series fitting into the concavities of the lower series; and horizontally extending tapered supports secured to the horizontal table and between each pair of lower dies and adapted to support each upper die throughout the length thereof.

In witness hereof I hereunto set my signature in the presence of two subscribing witnesses.

SOLOMON LAZAR.

Witnesses:

H. S. SPAULDING, E. PERKINS. 

